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Finding the Fourth Proportional to 795.11, 1,190.45 and 722.06

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Solution

The fourth proportional to 795.11, 1,190.45 and 722.06 is: 1,081.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.11 : 1,190.45 = 722.06 : x
  2. Step 2: Convert to fraction form
    795.11/1,190.45 = 722.06/x
  3. Step 3: Cross multiply
    795.11x = 1,190.45 × 722.06
  4. Step 4: Simplify right side
    795.11x = 859,566.76
  5. Step 5: Solve for x
    x = 859,566.76/795.11
  6. Step 6: Final answer
    x = 1,081.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.